Ed. by Ute Eggeling and Antje Utermann (exh. cat. Galerie Utermann, Dortmund, 31 May – 15 July 1989)Dortmund: Galerie Utermann, 1989 unpaginated 10 colored und 1 B/W illustrations German Texts by Ute Eggeling, Fritz Baumgart and Hans Kaiser
